Weegy: Natural selection's role in the evolution of species is like the role of the pruning shears in the shaping of topiary animals. [ The bush grows out all over just as mutations occur for all kinds of different variation among the individuals of the species. The pruning shears clip out those portions of the bush that don't fit into the shape of the animal, just as natural selection clips out those mutations that are poorly adapted to the ... (More)

Weegy: Lyell documented the fact that the earth must be extremely old, and that throughout time, the planet has continually undergone processes that change and shape the land, including erosion, earthquakes, glacial movements, volcanoes, [ and even the decomposition of dead plants and animals. ] (More)

Weegy: In this question you're assuming Hardy-Weinberg equilibrium. In other words, if B and b are the two alleles, B + b = 1 and B^2 + 2Bb + b^2 = 1. If 16% of mice are homozygous black, B^2 = 0.16, meaning B = 0.4 and b = 1 - 0.4 = 0.6. Answer is C. [ Notice how you don't even need to know that 24% of the mice are heterozygous. ] (More)

Weegy: The Hardy–Weinberg principle (also known as the Hardy–Weinberg equilibrium, model, theorem, [ or law) states that allele and genotype frequencies in a population will remain constant from generation to generation in the absence of other evolutionary influences. These influences include non-random mating, mutation, selection, genetic drift, gene flow and meiotic drive. Because one or more of these influences are typically present in real ... (More)

Weegy: It is resistance mechanism. (A new and effective antibiotic becomes widely used for a particular species of bacteria. After some time, an antibiotic-resistant strain of the bacteria becomes prevalent.) (More)